1. Stylish design， first-class comfortable sound quality， tintelligent operation， can listen for 20 hours each time<br />2. Bright light supports a variety of optional flow lines <br />3. 3.5mm audio input， can work without power <br />4. Built-in microphone， support digital signal processing echo cancellation technology<br />5. Compatible with iPhone， iPad， iPod， HTC， Samsung， LG all phones， tablet PCs， laptops， etc. with audio output interface device <br /><br />Color: black<br />Product size: about 170 x 170 x 40 mm ( adjustable )<br />Main function: wireless Bluetooth audio files play<br />Answer， hang up， reject calls<br />Dial the last telephone number<br />AUX play ( use when product shuts down， NOT including audio cable )<br /> Parameters:<br />1 Keys:<br />ON/OFF key <br />+ / - keys or volume key: long press for volume change， short press for the previous or next music. <br />Multifunctional key<br />Play/pause<br />Answer calls ( when a call comes， short press to answer the call ) ;<br />Hang up calls ( short press to end the call ) <br />Reject calls ( when a call comes， press and hold this button for about 3 seconds )<br />Dial the last phone number: quick double click multifunctional key， it can dial the last phone number <br />2 Interface:  DC 5V Micro USB， 3.5MM audio interface， MIC<br /><br />Paramter:<br />Working power: DC 5V Micro USB<br />Bluetooth version: V3.0 + EDR<br />Working distance: within 20 meters ( no obstruction )<br />Charging time: about 2.5 hours ( the red light is always on during charging process and the blue light is on after full charging. )<br /><br />1 x Bluetooth headset<br />1 x USB cable<br />1 x English user manual <br />In original package<br /><img src="http://img6.eachbuyer.com/x23/p42/bi260_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x23/p42/bi260_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x23/p42/bi260_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x23/p42/bi260_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x23/p42/bi260_5.jpg" />                                                        <img src="http://img6.eachbuyer.com/x23/p42/bi260_6.jpg" />